The **ABC-25-R** is a high-performance, fast-acting ceramic tube fuse commonly used in industrial and telecommunications equipment. It belongs to the **ABC series** manufactured by **Eaton (Bussmann Division)**. --- ## 1. Technical Specifications The "R" suffix indicates that the part is **RoHS compliant**. Below are the key electrical and physical characteristics: | Parameter | Specification | | :--- | :--- | | **Current Rating** | 25 Amperes | | **Voltage Rating (AC)** | 250 VAC | | **Voltage Rating (DC)** | 125 VDC | | **Fuse Type** | Fast-Acting (F) | | **Body Material** | Ceramic Tube | | **End Cap Material** | Nickel-plated Brass | | **Dimensions** | 1/4" x 1-1/4" (6.35mm x 31.75mm) | | **Interrupt Rating** | 1000A at 125 VAC/VDC / 400A at 250 VAC | --- ## 2. Key Features * **Ceramic Construction:** Unlike glass fuses, the ceramic body allows for a higher interrupting rating and better thermal resistance, making it safer for high-current surges. * **Fast-Acting Speed:** Designed to open quickly in the event of an overcurrent or short-circuit, providing superior protection for sensitive electronic components. * **Standard Form Factor:** The 3AG (1/4" x 1-1/4") size is a global standard, making it compatible with thousands of fuse holders and clips. --- ## 3. Common Applications The ABC-25-R is typically found in environments where high current levels are managed in a small footprint: 1. **Power Supplies:** Protecting input/output stages. 2. **Industrial Controls:** Motor control circuits and PLC protection. 3. **Telecommunications:** Battery chargers and distribution panels. 4. **HVAC Systems:** Control boards and heavy-duty blowers. --- ## 4. Part Number Breakdown ```text ABC - 25 - R | | | | | └── RoHS Compliant | └─────── Ampere Rating (25 Amps) └───────────── Series Name (Fast-acting Ceramic) ```